Just x²+c, but when you’re integrating between limits the +c doesn’t matter - so you’re just left with the difference between 13² and 10²…
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earned_myself_a_gin@reddthat.com 1 year ago
Can someone explain this? Integral from 10 to 13 of 2x? It’s been a long time since calculus for me, but isn’t that like 2x² + c or something like that?
Mwallerby@startrek.website 1 year ago
Templa@beehaw.org 1 year ago
It isn’t that it doesn’t matter, constant of integration is only used for undefined integrals.
qjkxbmwvz@lemmy.sdf.org 1 year ago
I think it’s “indefinite” not “undefined.”
The reason it doesn’t matter/is only used for indefinite integrals is just that it gets subtracted out when you evaluate at the limits.of integration, so it always goes away (but it’s still there).
Templa@beehaw.org 1 year ago
I think it’s “indefinite” not “undefined” (at least in English).
You are correct, it has been at least then years since my calculus classes which I took in a language that isn’t English.
zigmus64@lemmy.world 1 year ago
The integral of 2xdx is x^2 + c, and it’s evaluated from 10 to 13. So you’d have the following:
(13^2 + c) - (10^2 + c).
The c’s cancel. I’ll leave you to do the rest…
burgersc12@sh.itjust.works 1 year ago
69
genfood@feddit.de 1 year ago
Image
camr_on@lemmy.world 1 year ago
Is this Wolfram Alpha?
genfood@feddit.de 1 year ago
It is Photomath
camr_on@lemmy.world 1 year ago
Never heard of this before, looks cool. Wish I had that when I was taking calculus lol
can@sh.itjust.works 1 year ago
Looks like